2 1/2"dia. x 2 1/8"ht. Personalize your engine compartment. This chrome plated breather features a 1 3/4" dia. indented area in the top, to accomodate any self-stick medallion. Internal baffle and a high porosity filter make this breather ideal for high performance use. Fits factory and most aftermarket valve covers with 1.22" dia. hole. Includes grommet. Medallion not included.